I am using LwIP sample application in VDK to build upon.
In the Caesar Cipher thread I have a 2 global char arrays iTx and iRx .. If i use a size of 128 bytes for both arrays, the system sends packets just fine. But if i use a 256 byte allocation for both arrays. The "sendto" function fails with a error code of "0" . I'm using GetSocketError() to get the error.
I have also tried allocated this memory through system heap using malloc. but the behaviour is the same.
Caesar Ciper thread has a stack size of 2048 bytes (i've resized it).
What could be the problem ??